慕村9548890
我努力尝试并最终成功，这些“_VtblGaps_”是关键......只需将所有内容复制粘贴到一个新的 C# 脚本中并从您的程序脚本中使用：using System;using System.Runtime.InteropServices;using System.Windows.Forms;namespace MMDeviceAPI{public class MMDeviceController{ [ComImport] [Guid("BCDE0395-E52F-467C-8E3D-C4579291692E")] private class MMDeviceEnumerator { } [Guid("A95664D2-9614-4F35-A746-DE8DB63617E6"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)] private interface IMMDeviceEnumerator { void _VtblGap1_1(); //void _VtblGap1_5(); /// (Alternative) [PreserveSig] int GetDefaultAudioEndpoint(EDataFlow dataFlow, ERole role, out IMMDevice ppDevice); } [Guid("D666063F-1587-4E43-81F1-B948E807363F"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)] private interface IMMDevice { [PreserveSig] int Activate([MarshalAs(UnmanagedType.LPStruct)] Guid iid, int dwClsCtx, IntPtr pActivationParams, [MarshalAs(UnmanagedType.IUnknown)] out object ppInterface); void _VtblGap1_1(); int GetId([MarshalAs(UnmanagedType.LPWStr)] out string strId); } [Guid("5CDF2C82-841E-4546-9722-0CF74078229A"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)] private interface IAudioEndpointVolume { } [Guid("5CDF2C82-841E-4546-9722-0CF74078229A"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)] private interface IGetChannelCount : IAudioEndpointVolume { void _VtblGap1_2(); int GetChannelCount(ref uint pnChannelCount); } [Guid("5CDF2C82-841E-4546-9722-0CF74078229A"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)] private interface IGetChannelVolumeLevelScalar : IAudioEndpointVolume { void _VtblGap1_10(); int GetChannelVolumeLevelScalar(uint nChannel, ref float pfLevel); } [Guid("5CDF2C82-841E-4546-9722-0CF74078229A"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)] private interface IGetMasterVolumeLevelScalar : IAudioEndpointVolume { void _VtblGap1_6(); int GetMasterVolumeLevelScalar(ref float pfLevel); } [Guid("5CDF2C82-841E-4546-9722-0CF74078229A"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)] private interface IGetMute : IAudioEndpointVolume { void _VtblGap1_12(); int GetMute([MarshalAs(UnmanagedType.Bool)] ref bool pbMute); } [Guid("5CDF2C82-841E-4546-9722-0CF74078229A"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)] private interface ISetChannelVolumeLevelScalar : IAudioEndpointVolume { void _VtblGap1_8(); int SetChannelVolumeLevelScalar(uint nChannel, float fLevel, [MarshalAs(UnmanagedType.LPStruct)] Guid pguidEventContext); } [Guid("5CDF2C82-841E-4546-9722-0CF74078229A"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)] private interface ISetMasterVolumeLevelScalar : IAudioEndpointVolume { void _VtblGap1_4(); int SetMasterVolumeLevelScalar(float fLevel, [MarshalAs(UnmanagedType.LPStruct)] Guid pguidEventContext); } [Guid("5CDF2C82-841E-4546-9722-0CF74078229A"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)] private interface ISetMute : IAudioEndpointVolume { void _VtblGap1_11(); int SetMute([MarshalAs(UnmanagedType.Bool)] bool bMute, [MarshalAs(UnmanagedType.LPStruct)] Guid pguidEventContext); } public enum EDataFlow { eRender, eCapture, eAll }; public enum ERole { eConsole, eMultimedia, eCommunications }; ///==================================================================================================== private static IAudioEndpointVolume GetMMDeviceAudioEndpointVolume(EDataFlow dataFlow, ERole role) { IMMDeviceEnumerator MMDeviceEnumerator = (IMMDeviceEnumerator)(new MMDeviceEnumerator()); MMDeviceEnumerator.GetDefaultAudioEndpoint(dataFlow, role, out IMMDevice MMDevice); MMDevice.Activate(typeof(IAudioEndpointVolume).GUID, 0, IntPtr.Zero, out object o); IAudioEndpointVolume AudioEndpointVolume = (IAudioEndpointVolume)o; Marshal.ReleaseComObject(MMDevice); Marshal.ReleaseComObject(MMDeviceEnumerator); return AudioEndpointVolume; } public static uint GetChannelCount(EDataFlow dataFlow, ERole role) { IGetChannelCount AudioEndpointVolume = (IGetChannelCount)GetMMDeviceAudioEndpointVolume(dataFlow, role); uint returnValue = 0; AudioEndpointVolume.GetChannelCount(ref returnValue); Marshal.ReleaseComObject(AudioEndpointVolume); return returnValue; } public static float GetChannelVolumeLevelScalar(EDataFlow dataFlow, ERole role, uint channel) { IGetChannelVolumeLevelScalar AudioEndpointVolume = (IGetChannelVolumeLevelScalar)GetMMDeviceAudioEndpointVolume(dataFlow, role); float returnValue = 0; AudioEndpointVolume.GetChannelVolumeLevelScalar(channel, ref returnValue); Marshal.ReleaseComObject(AudioEndpointVolume); return returnValue; } public static float GetMasterVolumeLevelScalar(EDataFlow dataFlow, ERole role) { IGetMasterVolumeLevelScalar AudioEndpointVolume = (IGetMasterVolumeLevelScalar)GetMMDeviceAudioEndpointVolume(dataFlow, role); float returnValue = 0f; AudioEndpointVolume.GetMasterVolumeLevelScalar(ref returnValue); Marshal.ReleaseComObject(AudioEndpointVolume); return returnValue; } public static bool GetMute(EDataFlow dataFlow, ERole role) { IGetMute AudioEndpointVolume = (IGetMute)GetMMDeviceAudioEndpointVolume(dataFlow, role); bool returnValue = false; AudioEndpointVolume.GetMute(ref returnValue); Marshal.ReleaseComObject(AudioEndpointVolume); return returnValue; } public static void SetChannelVolumeLevelScalar(EDataFlow dataFlow, ERole role, uint channel, float volume) { ISetChannelVolumeLevelScalar AudioEndpointVolume = (ISetChannelVolumeLevelScalar)GetMMDeviceAudioEndpointVolume(dataFlow, role); AudioEndpointVolume.SetChannelVolumeLevelScalar(channel, volume, Guid.Empty); Marshal.ReleaseComObject(AudioEndpointVolume); } public static void SetMasterVolumeLevelScalar(EDataFlow dataFlow, ERole role, float volume) { ISetMasterVolumeLevelScalar AudioEndpointVolume = (ISetMasterVolumeLevelScalar)GetMMDeviceAudioEndpointVolume(dataFlow, role); AudioEndpointVolume.SetMasterVolumeLevelScalar(volume, Guid.Empty); Marshal.ReleaseComObject(AudioEndpointVolume); } public static void SetMute(EDataFlow dataFlow, ERole role, bool mute) { ISetMute AudioEndpointVolume = (ISetMute)GetMMDeviceAudioEndpointVolume(dataFlow, role); AudioEndpointVolume.SetMute(mute, Guid.Empty); Marshal.ReleaseComObject(AudioEndpointVolume); } ///==================================================================================================== public static void TestFunctionality() { int device = 0; EDataFlow dataFlow; ERole eRole; while (true) { device++; switch (device) { case 1: dataFlow = EDataFlow.eRender; eRole = ERole.eMultimedia; break; case 2: dataFlow = EDataFlow.eCapture; eRole = ERole.eMultimedia; break; default: return; } MessageBox.Show($"[EDataFlow & ERole]: {dataFlow.ToString()}_{eRole.ToString()}"); uint channels = GetChannelCount(dataFlow, eRole); MessageBox.Show("[GetChannelCount]: " + channels); MessageBox.Show("[GetChannelVolumeLevelScalar #0]: " + GetChannelVolumeLevelScalar(dataFlow, eRole, 0).ToString()); if (channels > 1) { MessageBox.Show("[GetChannelVolumeLevelScalar #1]: " + GetChannelVolumeLevelScalar(dataFlow, eRole, 1).ToString()); } MessageBox.Show("[GetMasterVolumeLevelScalar]: " + GetMasterVolumeLevelScalar(dataFlow, eRole).ToString()); MessageBox.Show("[GetMute]: " + GetMute(dataFlow, eRole).ToString()); MessageBox.Show("[SetChannelVolumeLevelScalar #0]: 0.44"); SetChannelVolumeLevelScalar(dataFlow, eRole, 0, 0.44f); if (channels > 1) { MessageBox.Show("[SetChannelVolumeLevelScalar #1]: 0.88"); SetChannelVolumeLevelScalar(dataFlow, eRole, 1, 0.88f); } MessageBox.Show("[SetMasterVolumeLevelScalar]: 0.55"); SetMasterVolumeLevelScalar(dataFlow, eRole, 0.55f); MessageBox.Show("[SetMute]: false"); SetMute(dataFlow, eRole, false); } } ///====================================================================================================}}